Marie-Chantal wore a dreamy pink lace dress with a full, pleated skirt, while her daughter slipped into a striking red sleeveless number by Dolce & Gabbana that featured embroidery down the front and a tulip skirt. With their hair pulled back, both mother and daughter had a custom Philip Treacy hat atop her head. Marie-Chantal's was a 'mini beano with hand-sculpted flowers' while Olympia donned a 'couture silver lace headdress with crystals.' Prince Pavlos looked dapper in his morning suit, featuring a light grey vest and baby blue tie, alongside his fashion-forward dates.

The princesses are both active on social media, and royal wedding day was no exception. Olympia got punny with her snap walking outside Windsor Castle with her father in the day's blustery weather. "Wind(sor)" she cutely captioned the photo. The 22-year-old's mom shared a group shot with friend in fantastic toppers in a variety of shapes and styles, captioning it "Hat Babes."

Prince Pavlos and Princess Marie-Chantal have a close connection to the British Royal Family, and even count Prince William as godfather to their son Prince Constantine-Alexios. The Duke of Cambridge took on the role when he was just 16. And Prince Charles took on the same meaningful role for the crown prince, so it's a relationship passed down through the generations.